Process Mechanical Engineer

Jacobs; Honolulu (HI); Hybrid; USD 91,000 - 143,000; Full time

Benefits offered by this job

Hybrid work policy

Job summary

Jacobs is seeking a driven Process-Mechanical Engineer to support water and wastewater projects locally in Hawaii and across the Western United States.

Required are a BS in civil or mechanical engineering and a PE license, with at least 8 years in project delivery and plant design. The role emphasizes collaboration, data analysis, and rigorous technical problem-solving in a fast-paced environment.

Qualifications

• Bachelor’s degree in civil or mechanical engineering or related field.
• Professional Engineer (PE) license is required.
• Minimum of 8 years of progressive process mechanical engineering and project delivery experience in water/wastewater/industrial treatment.
• Educational emphasis and interest in treatment/mechanical system design and operation.
• Self-motivated, team-oriented, strong data analysis and organizational skills; able to multi-task in a fast-paced environment.
• Proficient in MS Office Suite (Word, Excel, PowerPoint).

Responsibilities

• Evaluate pumping, treatment, and process options to determine best approaches for client challenges.
• Communicate complex problems and solutions with clients.
• Plan and design full-scale pumping, treatment systems, and plant improvements for construction.
• Develop facility layouts and P&IDs.
• Create construction documents, drawings, and specifications.
• Evaluate and select process equipment, pumping systems, pipes, and valves.
• Perform data analysis and computer modeling.
• Prepare technical reports.
• Provide bidding and permitting support.
• Support construction services and field inspections of equipment.

Skills

Data analysis

MS Office

Client communication

Multitasking

Team collaboration

Education

Bachelor’s in civil/mechanical engineering

PE license

Master’s degree (preferred)

Tools

Fathom

Pipe-Flo

Job description

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.

Your impact

We challenge what is currently accepted, so we can shape innovative and lasting solutions for tomorrow. If you are interested in a long and rewarding career working with the industry’s best and most innovative engineering employers, then Jacobs is where you belong. We are looking for a driven and curious Process-Mechanical Engineer to work on water/wastewater projects locally in Hawaii and across the Western United States.

• Evaluation of pumping, treatment, and process options to determine the best approaches to solve client challenges
• Ability to understand and communicate complex problems and solutions with clients
• Planning and design for full-scale pumping, treatment systems, and treatment plant improvements for construction
• Development of facility layouts and process & instrumentation diagrams (P&IDs)
• Development of construction documents, including drawings and specifications
• Evaluation and selection of process equipment, pumping systems, pipe materials, and valves
• Data analysis and computer modeling
• Technical report writing
• Bidding and permitting services support
• Construction services support
• Field inspection of treatment/mechanical equipment

Here’s what you’ll need

• Bachelor’s degree in civil engineering, mechanical engineering, or related engineering discipline
• Professional Engineer (PE) license
• A minimum of 8 years of progressive process mechanical engineering and project delivery experience with water, wastewater and/or industrial treatment, including planning, evaluations, and design
• Educational emphasis and a strong interest in treatment and/or mechanical system design and operation
• Self-motivation, team-oriented work practices, strong data analysis skills, technical problem-solving ability, organizational skills, and the ability to effectively multi-task in a fast-paced environment
• Proficient skills with MS Office Suite (Word, Excel, PowerPoint)

Ideally, you’ll have

• Master’s degree in civil, mechanical, or related engineering discipline
• 10 or more years of direct experience in municipal wastewater treatment or process mechanical for water/wastewater treatment plants, pump stations and conveyance systems experience
• Hydraulic modeling skills (e.g. Fathom, Pipe-Flo)
• Construction or facility operations experience
• Active in relevant professional organizations
• Working with and leading project teams and or managing projects
• Experience working and communicating directly with clients

Our health and welfare benefits are designed to invest in you, and in the things you care about. Your health. Your well-being. Your security. Your future. Employees have access to medical, dental, vision, and basic life insurance, a 401(k) plan, and the ability to purchase company stock at a discount. Eligible employees may also enroll in a deferred compensation plan or the Executive Deferral Plan. Jacobs has an unlimited U.S. Personalized Paid Time Off (PPTO) policy for full-time salaried/exempt employees, seven paid holidays, and caregiver leave. And certain roles may be eligible for additional rewards, including merit increases, performance discretionary bonus, and stock.

The base salary range for this position is $91,400.00 to $142,750.00. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. Job posted on August 10, 2026. This position will be open for at least 3 days.

We value collaboration and believe that in-person interactions are crucial for both our culture and client delivery. We empower employees with our hybrid working policy, allowing them to split their work week between Jacobs offices/projects and remote locations enabling them to deliver their best work.

Your application experience is important to us, and we’re keen to adapt to make every interaction even better. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team via Careers Support.